Improved machete for makihtg horse-shoes



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-IIRPROVED MACHINE FOR MAKING' HORSE-SHOES.

" The Bhedule referred to in these Letters Patent and making part of thesame.

To all whom fitmay conce/m; e

Beit known that I, JAMES CHRISTIE, of Pittsburg, county of Allegheny,Stateof Pennsylvania, have invented an Improved )Eorse-Shoe Machine; andI do hereby declare the following to bca full, clear, and exactdescription of thesamc.

The main features of4 my invention consist of a vibrating segment,carrying a die for shaping one side of a horse-shoe, combined withanother vibrating segment, carrying-another die for shaping the oppositeside of the shoe, Yall as fully described hereafter.

My invention also consists in the combination of the above with certaindevices, hereafter described, for

bending and compressing the shoe, and -for Withdrawing itfrom the'dieswhen completed. y

In order to enable others skilled in vthe, art to make and use myinvention, I will now proceed to describe its construction landoperation, reference being had to the accompanying drawing, which formsa part of, this specification, and in Which;-

Figure 1 is a sectional elevation of my improved horse-shoe machine;

Figure2, the same, with the' operatingA parts iu a different position;

Figure 3, a frontview;

Figure 4, a side view of the machine, the reverse of that shown in iigs.1 aud'2;

Figure 5, a sectional plan View on the line 1 2,

2r A "Figures Gland 7, detached views of parts ofthe machine; and 4Figure 8, au enlarged vertical section of part of the machine'.

Similar letters refer to parts throughout the several views.

A and A are the two permanent frames of-'the machine, and. are securedtoa suitable bed-plateor foundation, not shown in the drawing; and atthe rear, `and near to the top of these frames, are suitable bearings,in which turns 'the driving-shaft B, the latter being cranked at a,between .the standards, and having at one end a fly-wheel, c', and atthe opposite end suitable pulleys.

A rod, b, serves to connect the crank a of the driving-shat`t toasegment, O, secured to a shaft, -D, which is arranged to turn in the'opposite frames A and A',

and to which, outside of the frame A, is secured a toothed segment, F,gearing into a-shorter segment, F', on a rock-shaft, E, the latter beingalso arranged to vibrate in suitablebearin'gs in the frames4 of' themachine, and having between the frames, and directly over the segment C,a segment,0', of a length corresponding to that of the toothed segmentF".

The vupper die H is .bolted or otherwise secured to the rounded surfaceofthe segment O', and the die J is let into a recess in the segment C,and is itself recessed for the reception of a former, I, the latterbeing of a shape corresponding to that oi the inside of a' horse-shoe,as best observed in gs, 3 and 6, and

adapted to a similarly-shaped opening, c, in the upper v'die H.

The former l is attached to or forms a part of a rod, d, which isalranged to slide in the segment O, and is secured at its lower end tuacross-bar, j, the latter extending througha transverse opening, e, inthe said segment, and the opposite end of the bar projecting into curvedslides orA grooves g, in plates secured one to the inner side of eachframe.

These grooves g are so. curved that when the segment 0 is in theposition shown in dg. l, the former 'I will be elevated above the die J,and will remain in this elevated position during a portion 4of themovement of the segment, but will be suddenly depressed, as seen in iig.2, when the ends of the bar f pass into the rear portions of the saidgrooves; all of which will be fullydescribed hereafter. e

On the inner side of a'projection, L, on the frame A of the machine, isa guard, h, into a groove in which extends a set-screw, i, as bestobserved in figs. 3 and 6, Yand at a point opposite to this projectionL, and secured to the front of the frame A', so as to be adj nstablethereon laterally to a limited extent, is a bracket, M, through whichextends an opening, j, gs. 6 and 7, and, which is provided with a guard,h', similarto th guard k above alluded to. Y

A blade, k, which is arranged to slide vertically in thebracket M, isacted on by a spring, Il, which has a tendency to raise it, and by alever, l?, hung -to the lsaid bracket, and so operated by a. cam, I2, onthe rockshaft E, asto depress the said knife at intervals 'and fauseftscutting-edge to cross the opening j. (See 7. v gTwo curvedV levers P P,iig. 5, are hung to projections fm. m on the inner sides of theframes Aand A', and on the front end of each of these levers is a roller, r, andat the rear end a spring-catch, s, the said levers being operated insuch-a manner' as to cause their rollers tr'r to approach each other bya projection, t, on -the segment C at 4the rear of its die J Motionhaving been imparted to the driving-shaft, and the segments O and C'caused to oscillate upon their shafts through the gearing described, ared-hot bar of iron, X, is passed through the opening j ofthe bracket M,ata time when the segments are in the Vposition seen in gs. l and 3.

This bar can be fed to the machine either by hand or by suitablefeeding-devices connected with the machine.

the inner end ofthe bar X is introduced into the groove of theguard huntil it touches the end of the set-screw J,rvliich thus determines itsproper length, the said bar being then severed by the blade it, whichis' operated by the cam l2 and lever l, as `before described.

When a portion of the bar has been thus cut oi the segments O and Cbegin to move in the direction of the arrow, fig. l, and the bar restsfor an instant in the grooves of the guards h and h until it is struckby After having been passed through the openings j, n

the elevated former I, as best observedA in g. 6, and bent upon theVsame until its ends can pass' between y the guards.

. The bar next passes between the rollers r fr of the levers P I?,which, operated by the projection t ofthe segment, bearr upon the saidbar with a constantlyincreasing pressure, and bend it to the requiredshape upon the former I.

At the same time the bent bar is compressed between the dies H and J, asbest observed in fig. 8, a projection, c, on the upper die, forming therecesses for the nail-heads, while a rib,c, on. the lower die, forms thedepresses the former I until its upper surface is level with that' ofthe die J. (See fig. 2.)

The motion ofthe segments is'then reversed, the shoe being retainedbetween the spring-catches s' s until the segments have been moved tosuch a position as to permit it to fall into a suitable receptacle.

The operation is repeated in a similar manner, the lengthof that portionof the bar which is cut on" to form a shoe being in every casedetermined by the distance betweenthe blade lo and end of the set-screwt', so that, as both of ythese can be adjusted laterally toalim'itedextent, the 'length of the bar can be altered to suit the size of therequired shoe. v

It should be understood, also, that'the dies are arranged 'in such amannerthat they can be readily witnesses.

detached from the segments and replaced by others of a dierent size.

I am aware that dies and formers' have been so arranged, on rotatingparallel disks or rollers, as to bend and compress 'a bar to form ahorse-shoe. This arrangef ment greatly increases the weight and cost ofthe machine, and renders it difficult to gain access to the workingparts.

By the use of vibrating segments instead of rollers, not only are theabove diculties obviated, but the capacity of the machine is greatlyincreased, asV the segments can be vibrated more rapidly than it ispossible to rotate the cylinders, whileless power is required to operatethe machine, owing touthediminution 'in the size of its parts andconsequent decrease of friction.

Without claiming broadly the use for shaping articles of metal ofvibrating segments, provided with dies,

vI claim as my invention, and desire to secure by Letters Patent- 1. Thecombination of the dies, secured to the vibrate ing sectors, the formerI alternately elevated and depressed in the manner described, thepresser-arms P and catches s, or their equivalents, the whole being'arranged and operating together as and for the purpose herein setforth. i

2. The combination of the bending levers P, reciprocating former I,catches s s, and the lower vibrating sector, allarranged as set forth.

3. rllhe arrangement of parts, whereby the former I iS reciprocated atthe time and in the manner specified. In testimony whereof, I havesigned my name to this specification, in the presence of two subscribingJ AMES CHRISTIE. Witnesses: J. W. GAsKILL,

SAM. W. MAsTnRs.

